Duckstation/android/app/src/main/res/layout/layout_touchscreen_controller.xml

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/constraintLayout"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical">

    <com.github.stenzek.duckstation.TouchscreenControllerButtonView
        android:id="@+id/controller_button_r2"
        android:layout_width="70dp"
        android:layout_height="35dp"
        android:layout_marginEnd="60dp"
        android:layout_marginBottom="280dp"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:pressedDrawable="@drawable/ic_controller_r2_button_pressed"
        app:unpressedDrawable="@drawable/ic_controller_r2_button" />

    <com.github.stenzek.duckstation.TouchscreenControllerButtonView
        android:id="@+id/controller_button_r1"
        android:layout_width="70dp"
        android:layout_height="35dp"
        android:layout_marginEnd="60dp"
        android:layout_marginBottom="220dp"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:pressedDrawable="@drawable/ic_controller_r1_button_pressed"
        app:unpressedDrawable="@drawable/ic_controller_r1_button" />

    <com.github.stenzek.duckstation.TouchscreenControllerButtonView
        android:id="@+id/controller_button_right"
        android:layout_width="50dp"
        android:layout_height="50dp"
        android:layout_marginStart="120dp"
        android:layout_marginBottom="80dp"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:pressedDrawable="@drawable/ic_controller_right_button_pressed"
        app:unpressedDrawable="@drawable/ic_controller_right_button" />

    <com.github.stenzek.duckstation.TouchscreenControllerButtonView
        android:id="@+id/controller_button_up"
        android:layout_width="50dp"
        android:layout_height="50dp"
        android:layout_marginStart="70dp"
        android:layout_marginBottom="130dp"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:pressedDrawable="@drawable/ic_controller_up_button_pressed"
        app:unpressedDrawable="@drawable/ic_controller_up_button" />

    <com.github.stenzek.duckstation.TouchscreenControllerButtonView
        android:id="@+id/controller_button_l1"
        android:layout_width="70dp"
        android:layout_height="35dp"
        android:layout_marginStart="60dp"
        android:layout_marginBottom="220dp"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:pressedDrawable="@drawable/ic_controller_l1_button_pressed"
        app:unpressedDrawable="@drawable/ic_controller_l1_button" />

    <com.github.stenzek.duckstation.TouchscreenControllerButtonView
        android:id="@+id/controller_button_l2"
        android:layout_width="70dp"
        android:layout_height="35dp"
        android:layout_marginStart="60dp"
        android:layout_marginBottom="280dp"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:pressedDrawable="@drawable/ic_controller_l2_button_pressed"
        app:unpressedDrawable="@drawable/ic_controller_l2_button" />

    <com.github.stenzek.duckstation.TouchscreenControllerButtonView
        android:id="@+id/controller_button_left"
        android:layout_width="50dp"
        android:layout_height="50dp"
        android:layout_marginStart="20dp"
        android:layout_marginBottom="80dp"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:pressedDrawable="@drawable/ic_controller_left_button_pressed"
        app:unpressedDrawable="@drawable/ic_controller_left_button" />

    <com.github.stenzek.duckstation.TouchscreenControllerButtonView
        android:id="@+id/controller_button_down"
        android:layout_width="50dp"
        android:layout_height="50dp"
        android:layout_marginStart="70dp"
        android:layout_marginBottom="30dp"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:pressedDrawable="@drawable/ic_controller_down_button_pressed"
        app:unpressedDrawable="@drawable/ic_controller_down_button" />

    <com.github.stenzek.duckstation.TouchscreenControllerButtonView
        android:id="@+id/controller_button_start"
        android:layout_width="40dp"
        android:layout_height="25dp"
        android:layout_marginStart="80dp"
        android:layout_marginBottom="8dp"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHorizontal_bias="0.5"
        app:layout_constraintStart_toStartOf="parent"
        app:pressedDrawable="@drawable/ic_controller_start_button_pressed"
        app:unpressedDrawable="@drawable/ic_controller_start_button" />

    <com.github.stenzek.duckstation.TouchscreenControllerButtonView
        android:id="@+id/controller_button_select"
        android:layout_width="40dp"
        android:layout_height="25dp"
        android:layout_marginEnd="50dp"
        android:layout_marginBottom="8dp"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHorizontal_bias="0.5"
        app:layout_constraintStart_toStartOf="parent"
        app:pressedDrawable="@drawable/ic_controller_select_button_pressed"
        app:unpressedDrawable="@drawable/ic_controller_select_button" />

    <com.github.stenzek.duckstation.TouchscreenControllerButtonView
        android:id="@+id/controller_button_cross"
        android:layout_width="50dp"
        android:layout_height="50dp"
        android:layout_marginEnd="70dp"
        android:layout_marginBottom="30dp"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:pressedDrawable="@drawable/ic_controller_cross_button_pressed"
        app:unpressedDrawable="@drawable/ic_controller_cross_button" />

    <com.github.stenzek.duckstation.TouchscreenControllerButtonView
        android:id="@+id/controller_button_square"
        android:layout_width="50dp"
        android:layout_height="50dp"
        android:layout_marginEnd="120dp"
        android:layout_marginBottom="80dp"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:pressedDrawable="@drawable/ic_controller_square_button_pressed"
        app:unpressedDrawable="@drawable/ic_controller_square_button" />

    <com.github.stenzek.duckstation.TouchscreenControllerButtonView
        android:id="@+id/controller_button_triangle"
        android:layout_width="50dp"
        android:layout_height="50dp"
        android:layout_marginEnd="70dp"
        android:layout_marginBottom="130dp"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:pressedDrawable="@drawable/ic_controller_triangle_button_pressed"
        app:unpressedDrawable="@drawable/ic_controller_triangle_button" />

    <com.github.stenzek.duckstation.TouchscreenControllerButtonView
        android:id="@+id/controller_button_circle"
        android:layout_width="50dp"
        android:layout_height="50dp"
        android:layout_marginEnd="20dp"
        android:layout_marginBottom="80dp"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:pressedDrawable="@drawable/ic_controller_circle_button_pressed"
        app:unpressedDrawable="@drawable/ic_controller_circle_button" />
</androidx.constraintlayout.widget.ConstraintLayout>